Our Company

Founded in 1952 by the Klibert family, Diversified Well Logging, LLC., began its operations in the Gulf of Mexico - offshore Louisiana - and expanded by moving into land-based operations as the unconventional boom began to take off. Since its foundation DWL has always been proud to be a part of the dynamic oil and gas industry, and has always strived to be a step ahead of the challenges and changes the industry has gone through. The drive for innovation and improved efficiency continues today.


Diversified Well Logging has over sixty-eight years of offshore and onshore geological service experience

Meet Our Leadership Team

David Tonner CEO Diversified Well Logging

David Tonner CEO - LinkedIn

Mr. Tonner is a seasoned executive with 30 years of global oilfield service experience. He brings a solid technical background together with 26 years of management experience.

Aaron Swanson COO Diversified Well Logging

Aaron Swanson COO - LinkedIn

Mr. Swanson has held various operations, technology, and quality roles in Energy and Defense over the last 32 years. He Joined DWL as Chief Operations Officer in 2013.

Doy Dugan CFO Diversified Well Logging

Doy Dugan CFO - LinkedIn

Mr. Dugan has over 30 years of experience with oil field service companies holding positions from CFO to Assistant Controller for both public and private companies.

Rob Loos Quality HSE Manager Diversified Well Logging

Rob Loos QHSE Manager - LinkedIn

Mr. Loos has 40 years of experience in Oil and Gas. His areas of expertise include - IECEx, OSHA, NEC, IADC Competency Assurance, and is certified in API Q2.

Tracie Walker VP Sales & Marketing Diversified Well Logging

Tracie Walker VP Sales - LinkedIn

Tracie Walker has over 30 years of experience in the oil and gas industry.Tracie has a strong background in working with clients and helping them achieve their objectives.

Simon Hughes Geoscience Advisor Diversified Well Logging

Simon Hughes Geoscience - LinkedIn

Simon Hughes holds a B.Sc. in Geology from the University of London. He brings over 22-years of chemostratigraphic knowledge to DWL as a senior technical advisor.

Meri McCulley Geoscience Advisor Diversified Well Logging

Meri McCulley Geoscience - LinkedIn

Meri holds a M.Sc. in Geology from the University of Houston. Meri has many years of experience in core and cuttings geochemical analysis and interpretation.


A.I. Capital Efficient Solutions


Hybrid Mud Logging


Formation Hydrocarbon Mapping


Elemental Steering


RoboLogger Automation


Remote Wellbore Surveillance